NULL pointer dereference in Python
CVE-2019-5010
An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.
EPSS: 0.214 (97.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Python
- Debian Debian_linux — versions 9.0
- Opensuse Leap — versions 15.1
- Redhat Enterprise_linux — versions 8.0
- Redhat Enterprise_linux_eus — versions 8.1, 8.2, 8.4
- Redhat Enterprise_linux_server_aus — versions 8.2, 8.4, 8.6
- Redhat Enterprise_linux_server_tus — versions 8.2, 8.4, 8.6
- N/a Python — versions Python.org CPython 2.7.11 Python.org CPython 3.6.6 Python.org CPython 3.5.2 Python.org CPython 3 master at 480833808e918a1dcebbbcfd07d5a8de3c5c2a66
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talos-cna@cisco.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- talos-cna@cisco.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- talos-cna@cisco.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- talos-cna@cisco.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- talos-cna@cisco.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- talos-cna@cisco.com (mailing-list, x_refsource_MLIST)
- talos-cna@cisco.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-5010?
- CVE-2019-5010 is a high-severity vulnerability in Python, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2019-10-31.
- How severe is CVE-2019-5010?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-5010 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.